2020/09/07 by Andrea Bertoncini, Bertoncini, Andrea, Carlo Liberale +1 · 1 citation
Engineering · #FOS: Physical sciences #Optics (physics.optics) #Photonic Crystal and Fiber Optics #Photonic and Optical Devices #Semiconductor Lasers and Optical Devices
paper · pdf · doi:10.48550/arxiv.2009.04209
openalex publication_date 2020/09/07 · openalex created_date 2022/07/24 · openalex updated_date 2026/07/28
Optical waveguide segments based on geometrically unbound photonic crystal\nfibers (PCF) designs could be exploited as building blocks to realize\nminiaturized complex devices which implement advanced photonic operations.\nHere, we show how to fabricate optical waveguide segments with PCF designs by\ndirect high-resolution 3D printing and how the combination of these segments\ncan realise complex photonic devices. We demonstrate the unprecedented\nprecision and flexibility of our method by fabricating the first-ever fiber\npolarising beam splitter based on PCFs. The device was directly printed in one\nstep on the end-face of a standard single-mode fiber and was 210~\μm-long,\noffering broadband operation in the optical telecommunications C-band. Our\napproach harnesses the potential of high-resolution 3D printing and of PCF\ndesigns paving the way for the development of novel miniaturised complex\nphotonic systems, which will positively impact and advance optical\ntelecommunications, sensor technology, and biomedical devices.\n